One who or that which transmits something (in all senses).

plural of transmitter

Synonym of transmissible

a transmission / (physics) the fraction of incident light, or other radiation, that passes through a substance

Of, or relating to a transmission. / (physics, of light or other radiation) That passes through a substance.

the act of transmitting a message; a transmission / (construction) Item of correspondence.

plural of transmittal

plural of transmittance

(archaic) Alternative spelling of transmittable

(physics) A measure of transmittance.